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      <div class="card">
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        <tr ALIGN=left>
              <td  valign=top height=470 ><form method="post" action="search.php" name="theForm" onsubmit='return isaNum()'>
                  <p>
                <fieldset class=searchgrouptype1>
                  <legend><img src="img/biaoqian.ico"></img>设备类别 Group Type</legend>
                  <input type="radio" name="grouptype"value="I" id="I" checked onclick='gtIClick()'>
                  I类
                  </input>
                  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="grouptype"value="IIA" id="IIA" onclick='gtIIAClick()'>
                  IIA类
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                  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="grouptype"value="IIB" id="IIB" onclick='gtIBIClick()'>
                  IIB类
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                  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="grouptype"value="IIC" id="IIC" onclick='gtIICClick()'>
                  IIC类
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                  <legend><img src="img/biaoqian.ico"></img>电路类别 Circuit Type</legend>
                  <input type="radio" name="circuittype"value="capacity" id="capacity" checked onclick='capClick()'>
                  电容电路 Capacity
                  </input>
                  &nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="circuittype"value="resistance" id="resistance" onclick='resClick()'>
                  电阻电路 Resistance
                  </input>
                  &nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="circuittype"value="inductance" id="inductance" onclick='indClick()'>
                  电感电路 Inductance
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                  <DIV id="div-indvol" style="display:none"><span id='span-indvol' style="display:none">
                    <p>
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                    <legend><img src="img/biaoqian.ico"></img>电路电压Voltage</legend>
                    <input type="radio" id=4 name="indvol"value="4"  onclick='indvolClick(this)'>
                    4V
                    </input>
                    &nbsp;
                    <input type="radio" id=8 name="indvol"value="8"  onclick='indvolClick(this)'>
                    8V
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                    &nbsp;
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                    12V
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                    &nbsp;
                    <input type="radio" id =16 name="indvol"value="16" onclick='indvolClick(this)' >
                    16V
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                    &nbsp;
                    <input type="radio" id =18 name="indvol"value="18" onclick='indvolClick(this)' >
                    18V
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                    &nbsp;
                    <input type="radio" id =20 name="indvol"value="20" onclick='indvolClick(this)' >
                    20V
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                    &nbsp;
                    <input type="radio" id =22 name="indvol"value="22" onclick='indvolClick(this)' >
                    22V
                    </input>
                    &nbsp;
                    <input type="radio" id =24 name="indvol"value="24" checked onclick='indvolClick(this)' >
                    24V
                    </input>
                    </p>
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                  <p>
                <fieldset >
                  <legend><img src="img/biaoqian.ico"></img>安全系数 Factor</legend>
                  <input type="radio" name="factor"value="15" id="15" checked onclick='factorclick("15")'>
                  1.5
                  </input>
                  &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
                  <input type="radio" name="factor"value="10" id="10" onclick='factorclick("10")'>
                  1.0
                  </input>
                </fieldset>
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                  <p>
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                  <legend><img src="img/biaoqian.ico"></img>电压或电流Voltage or Current(V or A)</legend>
                  <input class="form-control" type="text" name="value" id="val" size="4"  maxlength="5" value="" >
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                  <input type="hidden" id=v name=v value="1" >
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